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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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海洋工程钢筋混凝土纳米硅渗透型防护剂的制备和性能*
Keywords: 复合材料,渗透型防护剂,溶胶凝胶,海工混凝土,快速固化
Abstract:
？以teos和mtes为前驱体,将盐酸催化的酸性硅溶胶按比例滴入氨水催化的碱性硅溶胶中,用酸碱两步法制备出海洋工程钢筋混凝土纳米硅渗透型防护剂。用透射电镜(tem)、扫描电镜(sem)、砂浆渗透深度、砂浆毛细吸水试验及混凝土氯离子电通量试验等手段对渗透型防护剂结构和性能进行了表征。结果表明:用酸碱两步法制备出类核壳结构二氧化硅颗粒溶胶,防护剂处理砂浆表面呈现明显类核壳结构点坑,砂浆渗透深度为1.3mm,处理4h表面吸水率降低85%以上,防护剂处理混凝土6h氯离子电通量降低50%以上。
| [1] | 2lucschueremans,dionysvangemert,sabinegiessler,chloridepenetrationinrc-structuresinmarineenvironment-longtermassessmentofapreventivehydrophobictreatment,constructionandbuildingmaterials,21,1239(2007)
|
| [2] | 3m.h.f.medeirosa,a.gobbia,g.c.réusa,p.helene,reinforcedconcreteinmarineenvironment:effectofwettinganddryingcycles,heightandpositioninginrelationtotheseashore,constructionandbuildingmaterials,44,452(2013)
|
| [3] | 4j.g.dai,y.akira,f.h.wittmann,h.yokota,p.zhang,waterrepellentsurfaceimpregnationforextensionofservicelifeofreinforcedconcretestructuresinmarineenvironments:theroleofcracks,32,106(2010)
|
| [4] | 5p.a.m.basheer,l.basheer,d.j.cleland,a.e.long,surfacetreatmentsforconcrete:assessmentmethodsandreportedperformance,constructionandbuildingmaterials,11(7-8):413(1997)
|
| [5] | 6c.christodouloua,c.i.goodierb,s.a.austinb,j.webba,g.k.glassc,long-termperformanceofsurfaceimpregnationofreinforcedconcretestructureswithsilane,constructionandbuildingmaterials,48,715(2013)
|
| [6] | 7annaklisinskakopacz,renatatislova,effectofhydrophobizationtreatmentonthehydrationofrepairromancementmortars,constructionandbuildingmaterials,35,739(2012)
|
| [7] | 8b.arkles,tailoringsurfaceswithsilanes,chemtech,7(12),767(1977)
|
| [8] | 9c.christodoulou,c.i.goodier,s.a.austin,g.k.glass,j.webb,inproceedingsofthe1stinternationalcongressondurabilityofconcrete,assessingthelong-termdurabilityofsilanesonreinforcedconcretestructures,editedbyicdc2012congress,trondheim,norway,2012
|
| [9] | 10s.werner,f.arthur,controlledgrowthofmonodispersesilicaspheresinthemicronsizerange,journalofcolloidandinterfacescience,26,63(1968)
|
| [10] | 11zhangpeng,daijianguo,zhaotiejun,folkerh.wittmann,s.hartmann,waterrepellenttreatmentonsurfaceofcrackedconcreteunderseawaterexposureenvironment,journalofbuildingmaterials,2(12),216(2009)
|
| [11] | (张鹏,戴建国,赵铁军,f.h.wittmann,s.hartmann,海水暴露环境下带裂缝混凝土的表面防水处理,建筑材料学报,2(12),216(2009))
|
| [12] | 12zhuguihong,zhaotiejun,guopinggong,songzenghong,researchonefficiencyofconcretewaterrepellenttreatmentunderdifferenthumidity,newbuildingmaterials,(5),45(2007)
|
| [13] | (朱桂红,赵铁军,郭平功,宋增红,不同湿度条件下混凝土防水处理的有效性研究,新型建筑材料,(5),45(2007))
|
| [14] | 1y.a.zaccardi,a.bertora,a.a.dimaio,temperatureandhumidityinfluencesontheon-siteactivemarinecorrosionofreinforcedconcreteelements,materialsandstructures,46(9),1527(2013)
|
| [15] | 13americansocietyfortestingandmaterials,standardtestmethodforelectricalindicationofconcrete’sabilitytoresistchlorideionpenetration,astmc1202-05,(2005)
|
| [16] | 14p.k.mehta,concrete:microstructurepropertiesandmaterials,3rdrevisededition,newyork,mcgraw-hillprofessional,2005,p.32
|
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